Black Star Leather Choker With Gunmetal ChainSize Sheet Product Details Chain length approx 30 cm with an extension chain of approx 5 cm. Keep dry and clean; store separately in a sealed bag when not wearing. Avoid contact with chemicals (perfume, skincare products, shower gel, etc.), avoid wearing during vigorous exercise or swimming, avoid wearing multiple metal accessories at the same time, avoid friction, and do not wear while sleeping. Size Chart Size Chain length Extension chain one_size